In 6-6, I go to the second room and climb the waterfalls, and I can see a door, on the other side of the current. Unfortunately, the space in between is too small for me to get to.
For 6-7, in the third room, I climb up the very first waterfall, and I find th...

okay so i am in the part where i am in the land with penguins in it and i made it to the end of the level and sadly iam at the giant penguin boss, i just cant beat it! is there an easyer way to stay alive and attack him then just repeatively pressing B!?! PLEA...